JP4865168B2 - Painting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coating machine that performs coating on a workpiece.
[0002]
[Prior art]
Conventional coating machines include the following.
As shown in FIG. 5, the coating machine has a processing chamber 120, a moving mechanism chamber 130, and a moving member 160.
A workpiece W is accommodated in the processing chamber 120. The movement mechanism chamber 130 is provided above the processing chamber 120 and adjacent to the processing chamber 120 via the partition plate portion 150.
The moving member 160 is accommodated in the moving mechanism chamber 130 and the processing chamber 120. The moving member 160 can be moved by a moving mechanism provided in the moving mechanism chamber 130, and a paint spraying portion 164 is provided in a portion of the moving member 160 located in the processing chamber 120.
[0003]
As shown in FIG. 6, slits 152 are formed in the partition plate portion 150. The slit 152 is formed corresponding to the moving path of the moving member 160 (the pair of leg portions 163), and the moving member 160 penetrates the slit 152, so that the inside of the moving mechanism chamber 130 and the processing are performed as described above. It is possible to move across the chamber 120.
Then, the paint is ejected from the paint ejection part 164 while the moving member 160 is moved by the movement mechanism, whereby the workpiece W is coated.
[0004]
[Problems to be solved by the invention]
However, in the conventional coating machine, the slit 152 formed in the partition plate 150 (exactly, the portion where the moving member 160 is not located) is always open, and the processing chamber 120 and the moving mechanism chamber are open. 130 is in a communication state.
For this reason, the paint sprayed from the paint spraying part 164 and having a mist shape in the processing chamber 120 enters the movement mechanism chamber 130 through the slit 152. And the coating material adheres with respect to each member (for example, bearing etc.) which comprises a moving mechanism, and the function of the moving mechanism will fall.
[0005]
Therefore, an object of the present invention is to provide a coating machine in which the coating material is prevented (including reduced) from entering the moving mechanism chamber.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is a coating machine that performs coating on a workpiece, and includes a processing chamber in which the workpiece is accommodated, and a partition portion for the processing chamber. A moving mechanism chamber provided; a moving member accommodated in the moving mechanism chamber and the processing chamber; and provided to be movable by the moving mechanism provided in the moving mechanism chamber; and the moving member among the moving members Provided in a portion located in the processing chamber, and formed in correspondence with a movement path of the moving member in the partition, and a paint jetting part for jetting paint to the workpiece, and the moving member is in a penetrating state. and the slit is disposed so as to correspond to the slit, provided movably with said moving member, possess a shielding belt for shielding said slit, said shielding belt is formed in a substantially endless Cage, both are hung to be circulated between the pulleys provided on said moving mechanism chamber, in which circulation movement in accordance with movement of the moving member, a sprayer.
[0007]
In the coating machine of the present invention, the following operational effects can be obtained.
The moving member passes through the slit formed in the partition and is accommodated across the moving mechanism chamber and the processing chamber. Then, while the moving member is moved by the moving mechanism (located in the moving mechanism chamber), the paint is ejected from the paint ejecting portion (located in the processing chamber), thereby coating the workpiece in the processing chamber. .
[0008]
At that time, a shielding belt disposed corresponding to the slit and movable with the moving member shields the slit.
For this reason, the mist-like paint in the processing chamber is prevented from entering the moving mechanism chamber through the slit. And it is prevented that the function of the moving mechanism in a moving mechanism room falls.
[0009]
Moreover, in the coating machine of this invention, since the shielding belt formed substantially endlessly circulates with the movement of the moving member, the shielding belt can be disposed while saving space.
Note that “substantially endless” includes “endless”.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the coating machine has a housing 10.
The housing 10 is partitioned by a partition plate portion 50 (partition portion). A portion of the inside of the housing 10 below the partition plate portion 50 is the processing chamber 20, and similarly, an upper side of the partition plate portion 50 is the moving mechanism chamber 30.
[0011]
A conveyor 22 is disposed in the processing chamber 20, and the workpiece W (object to be coated) is moved by the conveyor 22 in a direction perpendicular to the paper surface of FIG. 1.
[0012]
A moving member 60 is disposed across the moving mechanism chamber 30 and the processing chamber 20. The moving member 60 can be moved (reciprocating left and right in FIG. 1) by a moving mechanism (described below).
[0013]
A moving mechanism is provided in the moving mechanism chamber 30 as follows.
In the moving mechanism chamber 30, a pair of sprockets (a drive sprocket 31a and a driven sprocket 31b) are rotatably disposed. And the chain 32 is spanned over both the sprockets 31a and 31b.
[0014]
As shown in FIG. 2, a rotation shaft 33 is fixed to the drive sprocket 31 a, and the rotation shaft 33 is rotatably supported by a bearing 34. A sprocket 35 is provided on the rotating shaft 33. A motor 40 is provided on the upper portion of the housing 10, and a chain 42 is stretched over a sprocket 41 and a sprocket 35 provided on a rotation shaft (reference numeral omitted) of the motor 40.
As shown in FIG. 3, the driven sprocket 31b is rotatably attached to the fixed shaft 36 via a bearing (reference number omitted).
[0015]
Therefore, as shown in FIG. 1, the drive sprocket 31a rotates with the rotation of the rotating shaft of the motor 40, and the chain 32 circulates between the sprockets 31a and 31b.
[0016]
The moving member 60 has a base member 61 at its base end, and a pair of leg portions 63 are connected to the base member 61. The base member 61 is located in the moving mechanism chamber 30, and most of the legs 63 are located in the processing chamber 20.
A paint spraying portion 64 is provided at the lower end of the moving member 60 (leg portion 63). A fine granular paint is ejected from the paint ejection part 64.
[0017]
As shown in FIGS. 2 and 3, the connecting member 66 is fixed to one place of the chain 32, and the base member 61 is fixed to the connecting member 66. In this way, the base member 61 (moving member 60) is connected to the chain 32. For this reason, as shown in FIGS. 1 to 3, the base member 61 moves as the chain 32 circulates.
[0018]
A pair of horizontal rails 39 are provided in the movement mechanism chamber 30 so as to be fixed in position. Both rails 39 extend in the left-right direction in FIG. The base member 61 is formed with guided portions 67 corresponding to the rails 39, and the guided portions 67 are fitted to the rails 39. Thus, the horizontal movement of the base member 61 is guided.
As described above, the moving member 60 moves horizontally as the chain 32 circulates.
[0019]
As shown in FIGS. 1 to 4, a slit 52 is formed in the partition plate portion 50. The slit 52 is formed corresponding to the moving path of the moving member 60 (leg part 63). That is, the moving member 60 (leg part 63) is located across the movement mechanism chamber 30 and the processing chamber 20 through the slit 52, and the above-described movement (reciprocating movement) is possible.
[0020]
A substantially endless shielding belt 70 is circulated in the moving mechanism chamber 30. As shown in FIG. 4, each end of the shielding belt 70 is fixed to each leg 63 of the moving member 60. Between both the leg parts 63, the shielding board 71 is provided so that each edge part of both the leg parts 63 may be connected. For this reason, the shielding belt 70 is endless together with the shielding plate 71 and the like.
[0021]
As shown in FIGS. 1 to 3, a pair of upper pulleys 72 a and a pair of lower pulleys 72 b are rotatably provided in the moving mechanism chamber 30, and the shielding belt 70 includes four pulleys 72 a, It spans between 72b so that circulation is possible. A portion of the shielding belt 70 between the pair of lower pulleys 72 b corresponds to the slit 52.
[0022]
As shown in FIGS. 2 to 4, a pair of belt guide portions 54 are attached to the slit 52. Both belt guide portions 54 extend along the length direction of the slit 52. Each belt guide portion 54 has a groove shape opened toward each other (that is, toward the inner side of the slit 52). The shielding belt 70 (the portion corresponding to the slit 52) is fitted into the pair of belt guide portions 54 (openings thereof), and the shielding belt 70 is maintained in a state corresponding to the slit 52.
[0023]
For this reason, the shielding belt 70 circulates with the movement of the moving member 60, and the shielding belt 70 (the portion between the pair of lower pulleys 72b) always shields the slit 52.
[0024]
Next, the operation and effect of this coating machine will be described.
As shown in FIG. 1, in this coating machine, with the rotation of the motor 40 (forward and reverse rotation), the drive sprocket 31a rotates, the chain 32 circulates, and the moving member 60 reciprocates. In this state, a fine granular paint is ejected from the paint ejection part 64, whereby the workpiece W moved by the conveyor 22 is painted.
[0025]
As the moving member 60 reciprocates as described above, the shielding belt 70 also circulates and reciprocates. As shown in FIGS. 2 to 4, the shielding belt 70 always shields the slit 52.
For this reason, the mist-like paint in the processing chamber 20 is prevented from entering the moving mechanism chamber 30. This prevents the function of the moving mechanism in the moving mechanism chamber 30 from being deteriorated.
[0026]
Note that the above is merely an embodiment of the present invention, and it is needless to say that the present invention can be implemented in various modifications based on the knowledge of those skilled in the art.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a coating machine according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a part of a coating machine (driving sprocket and its surroundings) according to an embodiment of the present invention.
FIG. 3 is a longitudinal sectional view showing a part of a coating machine (driven sprocket and its surroundings) according to an embodiment of the present invention.
FIG. 4 is a perspective view showing a main part of a coating machine according to an embodiment of the present invention.
FIG. 5 is a longitudinal sectional view showing a conventional coating machine.
FIG. 6 is a perspective view showing a main part of a conventional coating machine.
[Explanation of symbols]
20 processing chamber 30 moving mechanism chamber 31a drive sprocket (moving mechanism)
31b Driven sprocket (movement mechanism)
32 Chain (movement mechanism)
50 Partition plate (partition)
52 Slit 60 Moving member 64 Paint spraying part 70 Shielding belt

Claims (1)

A coating machine for painting a workpiece,
A processing chamber in which workpieces are stored;
A moving mechanism chamber provided via a partition for the processing chamber;
A moving member housed in the moving mechanism chamber and the processing chamber and provided so as to be movable by a moving mechanism provided in the moving mechanism chamber;
A paint spraying part that is provided in a part of the moving member located in the processing chamber and sprays paint on the workpiece;
A slit formed in the partition portion corresponding to the moving path of the moving member, and the moving member is in a penetrating state;
Are arranged corresponding to the slits, movably provided together with the movable member, possess a shielding belt for shielding said slit,
The shielding belt is formed in an almost endless shape, and all of the shielding belt is circulated between pulleys provided in the movement mechanism chamber so as to circulate, and circulates and moves as the moving member moves. is there,
Painting machine.

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